The special will be available on the BBC red button from 10.05pm this evening, and both Davison and Baker discussed the show during yesterday's Regenerations Q&A panel at the Doctor Who Official 50th Celebration in London's Excel Centre (via VirginMedia):
''I think there was a gap in the celebration in as far as the content that was available so we decided to fill it really," said Davison, the Fifth incarnation of the Time Lord. "We worked hard on it and it wasn't always easy because it was quite a busy summer for everybody so we had to slot days in here and there. But it's fun. I can't reveal all the people that are in it because they are just so many. But I have to say I think we have the best cast list of any of the content that's available this weekend and that actually includes the 50th anniversary special. I think we have a better cast list than the special.''
''I have to say Peter who has masterminded this has done a remarkable job. He should be inordinately proud of it, I know when you (the fans) watch it you're going to place it at the top of your list of best programmes celebrating the anniversary. I know it," said Baker, with McCoy adding, "In a way, it was our present to the Doctor Who fans all over the world."